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authorobrien <obrien@FreeBSD.org>2009-01-01 05:39:43 +0000
committerobrien <obrien@FreeBSD.org>2009-01-01 05:39:43 +0000
commit87d6fde760865f6a73395e6a7a56b3a608ea99b1 (patch)
tree642b6c9d31fbc0f98b1a7fac09aa341daf3ddb15 /usr.bin/file/ascmagic.c
parent99e8b7f6d178e1403522ce383957e9c576b7c3ad (diff)
downloadFreeBSD-src-87d6fde760865f6a73395e6a7a56b3a608ea99b1.zip
FreeBSD-src-87d6fde760865f6a73395e6a7a56b3a608ea99b1.tar.gz
Flatten the file vendor area.
Remove the svn:keywords property from the vendor files.
Diffstat (limited to 'usr.bin/file/ascmagic.c')
-rw-r--r--usr.bin/file/ascmagic.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/usr.bin/file/ascmagic.c b/usr.bin/file/ascmagic.c
deleted file mode 100644
index 7ba9ae1..0000000
--- a/usr.bin/file/ascmagic.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * ASCII magic -- file types that we know based on keywords
- * that can appear anywhere in the file.
- *
- * Copyright (c) Ian F. Darwin, 1987.
- * Written by Ian F. Darwin.
- *
- * This software is not subject to any license of the American Telephone
- * and Telegraph Company or of the Regents of the University of California.
- *
- * Permission is granted to anyone to use this software for any purpose on
- * any computer system, and to alter it and redistribute it freely, subject
- * to the following restrictions:
- *
- * 1. The author is not responsible for the consequences of use of this
- * software, no matter how awful, even if they arise from flaws in it.
- *
- * 2. The origin of this software must not be misrepresented, either by
- * explicit claim or by omission. Since few users ever read sources,
- * credits must appear in the documentation.
- *
- * 3. Altered versions must be plainly marked as such, and must not be
- * misrepresented as being the original software. Since few users
- * ever read sources, credits must appear in the documentation.
- *
- * 4. This notice may not be removed or altered.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include "file.h"
-#include "names.h"
-
-#ifndef lint
-static char *moduleid =
- "@(#)$Id: ascmagic.c,v 1.21 1997/01/15 17:23:24 christos Exp $";
-#endif /* lint */
-
- /* an optimisation over plain strcmp() */
-#define STREQ(a, b) (*(a) == *(b) && strcmp((a), (b)) == 0)
-
-int
-ascmagic(buf, nbytes)
-unsigned char *buf;
-int nbytes; /* size actually read */
-{
- int i, has_escapes = 0;
- unsigned char *s;
- char nbuf[HOWMANY+1]; /* one extra for terminating '\0' */
- char *token;
- register struct names *p;
-
- /*
- * Do the tar test first, because if the first file in the tar
- * archive starts with a dot, we can confuse it with an nroff file.
- */
- switch (is_tar(buf, nbytes)) {
- case 1:
- ckfputs("tar archive", stdout);
- return 1;
- case 2:
- ckfputs("POSIX tar archive", stdout);
- return 1;
- }
-
- /*
- * for troff, look for . + letter + letter or .\";
- * this must be done to disambiguate tar archives' ./file
- * and other trash from real troff input.
- */
- if (*buf == '.') {
- unsigned char *tp = buf + 1;
-
- while (isascii(*tp) && isspace(*tp))
- ++tp; /* skip leading whitespace */
- if ((isascii(*tp) && (isalnum(*tp) || *tp=='\\') &&
- isascii(tp[1]) && (isalnum(tp[1]) || tp[1] == '"'))) {
- ckfputs("troff or preprocessor input text", stdout);
- return 1;
- }
- }
- if ((*buf == 'c' || *buf == 'C') &&
- isascii(buf[1]) && isspace(buf[1])) {
- ckfputs("fortran program text", stdout);
- return 1;
- }
-
-
- /* Make sure we are dealing with ascii text before looking for tokens */
- for (i = 0; i < nbytes; i++) {
- if (!isascii(buf[i]))
- return 0; /* not all ASCII */
- }
-
- /* look for tokens from names.h - this is expensive! */
- /* make a copy of the buffer here because strtok() will destroy it */
- s = (unsigned char*) memcpy(nbuf, buf, nbytes);
- s[nbytes] = '\0';
- has_escapes = (memchr(s, '\033', nbytes) != NULL);
- while ((token = strtok((char *) s, " \t\n\r\f")) != NULL) {
- s = NULL; /* make strtok() keep on tokin' */
- for (p = names; p < names + NNAMES; p++) {
- if (STREQ(p->name, token)) {
- ckfputs(types[p->type], stdout);
- if (has_escapes)
- ckfputs(" (with escape sequences)",
- stdout);
- return 1;
- }
- }
- }
-
- /* all else fails, but it is ASCII... */
- ckfputs("ASCII text", stdout);
- if (has_escapes) {
- ckfputs(" (with escape sequences)", stdout);
- }
- return 1;
-}
-
-
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